![]() ![]() All of matter is made of these 118 elements, combined in various ratios and kept in different states, like solids.ĭepending on where you are in the universe, some are more prevalent. It consists of a specific number of protons and variable neutrons and electrons. What are the 118 elements?Īn element, simply put, is a fundamental unit of matter that cannot be easily broken down. Other information in the box includes the element’s electron configuration, electronegativity, oxidation states, and its first ionization energy measured in kilojoules per mole. The largest number is the element’s atomic number. Located right above the English name for each element, the largest letters represent its chemical abbreviation. We go in-depth on each of these groups in the questions below. The colored areas of our table break up the elements into groups of alkali metals, alkaline earth metals, lanthanides and actinides, transition and post-transition metals, metalloids, nonmetals, halogens, and noble gases. Some tables, like ours above, also include colors to help identify groups that cross rows and columns. ![]() The table is comprised of seven rows (called periods), 18 columns (called groups or families). The key to understanding the periodic table is in its layout. This pattern is called a period (or row) on the periodic table. Based on the number of electrons, a scientist can determine which group to place an element into. When Dmitri Mendeleev drew up the periodic table, he grouped elements of similar properties. Here are some answers to common questions about the periodic table. Regulated Brokers: Where Can I Trade Metal Commodities?. ![]()
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